STEEL PLATES TO MEET THE OFFSHORE CHALLENGE

Steel plate for offshore structures must meet four major requirements: strength, resistance to impact and to lamellar tearing, and weldability. Savings in weight are important in these structures, so that the use of steels with the highest possible yield strength permits the use of thinner plates, which also reduces the amount of welding required. The steel must be tough enough to meet the provisions of the Charpy V-notch impact test in the transverse direction with the specimen absorbing a minimum energy of 27 Joules at--50 deg C. Resistance to hydrogen cracking is essential, and Granges Oxelosands, Jarnverk, Sweden, have developed two steels with improved characteristics in this respect. These new steels are guaranteed to have yield strengths of 350 N/sq mm and 450 N/sq mm respectively, and conform to the carbon equivalent defined by the International Institute of Welding for resistance to hydrogen cracking. Order from: BSRA as No. 46,858.

• Corporate Authors:

  Industrial Press Limited

  Dorset House, Stamford Street
  London SE1,   England 
• Authors:
  • Harvig, H
• Publication Date: 1977-4-29

Media Info

• Pagination: 2 p.
• Serial:
  • Petroleum Times
  • Volume: 81
  • Publisher: IPC Industrial Press Limited

Subject/Index Terms

• TRT Terms: Cracking; Crash tests; Offshore structures; Steel plates; Strength of materials; Structural analysis; Tearing; Welding
• Uncontrolled Terms: Crack propagation; Weldability
• Old TRIS Terms: Charpy tests; Strength analysis
• Subject Areas: Bridges and other structures; Marine Transportation; Materials; Research;

Filing Info

• Accession Number: 00170042
• Record Type: Publication
• Source Agency: British Ship Research Association
• Files: TRIS
• Created Date: Feb 16 1978 12:00AM